Collection of customs and traditions in the history of a nation is what makes a traditional cultural heritage. Both material and non material heritage represent the wealth of a nation in its dissimilarity and authenticity, and protecting it means keeping a nation's cultural identity. It is passed on from generation to generation and enriches people both culturaly and spiritually. There are many customs which are lost, but also those which are deeply rooted in people's everyday lives. This paper covers annual customs of village Bisko, near Trilj, and other than the customs of the folk, it covers church holidays such as Advent, Holy three days before Easter and Easter, as well as memorial days of certain saints that are celebrated in Bisko. This paper shows folklore, both mythological and demonological, as well as microsructures of oral literature. Besides the general facts about customs and traditions, this paper offers a personal view of the whole tradition, and it is based on the statements of the late Marija Šimundža. Thanks to her, the customs seem more interesting and real.